[mythtv] Broken AV sync after mythtranscode

Tino Keitel tino.keitel at gmx.de
Sun Jan 1 10:14:54 EST 2006

On Fri, Dec 30, 2005 at 12:24:34 +0100, Adam Egger wrote:
> On 12/26/05, Geoffrey Hausheer <mythtv0368 at phracturedblue.com> wrote:
> > On 12/25/05, Adam Egger wrote:
> > > Geoff, thank you very much for r8381 ;) This one fixed almost all my
> > > A/V issues. All my transcoded files lose 40% of data and are perfectly
> > > synchronous :D Great!
> > I just checked in a rework of how PTS discrepencies are handled.  This
> > should fix Tino's stream, but I may well have broken other cases.  The
> > code adds quite a bit of complexity, unfortunately, so it is hard for
> > me to be sure I covered everything.
> >
> > > The only small issue I still have are some green frames on every cut
> > > point. Is it a known issue? Here's a small (1MB) transcoded file with
> > > a cut point at the beginning:
> > >
> > I'm not actually able to reproduce this so far.  I did check in a fix
> > for frame corruption after a cutpoint in 8386, but I don't think it is
> > the same problem you are seeing.  How far in is the 1st cutpoint?
> > Could you send me enough of the stream to duplicate the issue, along
> > with the cutlist?
> Your latest patches fixed all outstanding issues for me. Mythtranscode
> really works great here. I don't see any green frames anymore and
> there are no more asynchronous files. Thank you!

I can confirm that the recording which was the reason for starting this
thread has now correct AV sync after mythtranscode, at least after a
short check that I just did. Tanks for your great work.


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